Patents by Inventor John Derkson

John Derkson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Modular tile plow
    Patent number: 10202738
    Abstract: A tile plow, including a pivot bolt, a frame, a shank including a bottom at a first end of the shank, a top at a second end opposite the first end of the shank, a height measured from the bottom to the top, and a male connector, the shank hingeably connected with the frame at the pivot bolt, wherein the pivot bolt is positioned, in a direction extending from the bottom towards the top, at 66.4 percent of the height or more.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: February 12, 2019
    Inventor: John Derkson
  • MODULAR TILE PLOW
    Publication number: 20180355581
    Abstract: A tile plow, including a pivot bolt, a frame, a shank including a bottom at a first end of the shank, a top at a second end opposite the first end of the shank, a height measured from the bottom to the top, and a male connector, the shank hingeably connected with the frame at the pivot bolt, wherein the pivot bolt is positioned, in a direction extending from the bottom towards the top, at 66.4 percent of the height or more.
    Type: Application
    Filed: June 7, 2017
    Publication date: December 13, 2018
    Inventor: John Derkson